The Leviton-NSI IF 501 Control interface is your simple solution for dimmer and control systems compatibility. Increased flexibility of control system design is achieved with the multiple signal ports and protocols available with the IF 501. The IF 501 may be configured to combine and convert analog, analog multi-plex and digital control signals. In addition to interfacing a variety of control signals, the IF 501 is programmable as a stand-alone auto sequence control device. Eight preprogrammed crossfading chase effects with step times from 1 to 60 seconds may be selected. A precision 20 cue sequence with fade and wait times from 0.1 second to 50 minutes may be programmed into the non-volatile memory via the RS-232 port and triggered remotely.